XT_TCP_INV_OPTION   48 include/uapi/linux/netfilter_ipv4/ip_tables.h #define IPT_TCP_INV_OPTION	XT_TCP_INV_OPTION
XT_TCP_INV_OPTION   48 include/uapi/linux/netfilter_ipv6/ip6_tables.h #define IP6T_TCP_INV_OPTION	XT_TCP_INV_OPTION
XT_TCP_INV_OPTION  114 net/netfilter/xt_tcpudp.c 				     tcpinfo->invflags & XT_TCP_INV_OPTION,